With a picture eqation

Could somebody me with this radical simplification?

James is playing his favorite game at the arcade. after playing the game 33 times, he has 88 tokens remaining. he initially had 2020 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.